Present investigation was carried out in order to make clear the fertility, morphological characters, and chromosome numbers of interspecific hybrids of Chrysanthemum Zavadskii, C. indicum, and C. lacandulaefolium.
1. Hybrids were not self-pollinated. When sib-crossed the fertility was 1.3∼19.3%.
2. F_2 individuals were variable in their morphological Characters.
3. Chromosome numbers of three putative parents were different from those reported previously:
C. zawadskii 2n=36, C. indicum 2n=20, C. lavandulaefolium 2n=16, C. indicum × C. zawadskii 2n=28, C. zawadskii × C. indicum-1 2n=28, C. zawadskii × C. indicum-2 2n=28, C. zawadskii × C. indicum-3 2n=28, C. zawadskii × C. indicum-4 2n=28, C. zawadskii × C. indicum-5 2n=28, C. zawadskii × C. lavandulaefolium-1 2n=26, C. zawadskii × C. lavandulaefolium-2 2n=26.
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